/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/ControlRigComponent.h
Returns true if an element given a type and name exists in the rig
true if the element exists
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="ControlRig") bool DoesElementExist ( [FName](API\Runtime\Core\UObject\FName) Name, [ERigElementType](API\Plugins\ControlRig\Rigs\ERigElementType) ElementType )